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Why Is the General High Temperature of the Temperature and Humidity Test Chamber Only 150℃?

Temperature and humidity test chamber is an indispensable equipment in industrial production and scientific research experiments, which is used to simulate extreme environments to test the durability of materials and the reliability of electronic components. But many wonder why most general-purpose devices are only set to a maximum temperature of 150 ° C, rather than 200 ° C, 300 ° C or more. LIB is with you today to uncover the answer to that question.

Improving the temperature range of the temperature and humidity test chamber faces many problems: first, the heat resistance of the material has a limit, the coated steel plate exceeds 200 ° C, the rubber seal ring exceeds 150 ° C, respectively, the special material needs to be changed to silicon fluorine rubber, the cost is high, the durability is reduced, the sensor and the circuit also need heat insulation; Second, the heating system to balance efficiency and cost, when it rises to 300 ° C, the heating method has to be upgraded, the thermal uniformity becomes worse, the cooling demand surges, and the equipment and operating costs increase; Third, there are safety risks, residual organic matter above 300 ° C may ignite, need explosion-proof and inert gas protection, and exceed international standards such as IEC 60068-2-2 temperature limit, test results or not recognized.

For all these reasons, LIB recommends that if your test requires a temperature of more than 150 ° C or higher, LIB recommends the purchase of two devices, the cost is much lower than the ultra-high temperature performance modification on the standard temperature and humidity test chamber. For example, LIB industrial oven, the high temperature can reach 250℃, 500℃,800℃,1000℃, 1200℃. At the same time, the LIB temperature and humidity test chamber also has three low temperature options -20℃, -40℃, -70℃.

Model	TH-100	TH-225	TH-500	TH-1000
Interior Volume	100L	225L	500L	1000L
Heat load	1000W
Temperature Range	A : -20℃ ～ +150 ℃ B : -40℃ ～ +150 ℃ C: -70℃ ～ +150 ℃
Temperature Fluctuation	± 0.5 ℃
Temperature Deviation	± 2.0 ℃
Humidity Range	20% ~ 98% RH
Humidity Deviation	± 2.5% RH
Cooling Rate	1 ℃ / min
Heating Rate	3 ℃ / min